Card connector

Abstract

A card connector includes an insulating housing defining a receiving chamber and an inserting chamber connected with the receiving chamber, electrical terminals assembled in the insulating housing, and a shielding shell enclosing the insulating housing. Two receiving fillisters are opened in two inner sides of two side walls forming at two opposite sides of the receiving chamber. Two restraining members each has a base strip disposed in the receiving fillister, and an elastic arm inclined inward into the receiving chamber. The elastic arms are pressed into the receiving fillisters when a SIM card is inserted in the receiving chamber. In the process of inserting a micro SIM card into the card connector, the elastic arms resist against two opposite side edges of the micro SIM card to guide a rear of the micro SIM card to be smoothly inserted into the inserting chamber.

What is claimed is: 
     
       1. A card connector adapted for receiving a SIM card and a micro SIM card therein, comprising:
 an insulating housing of a substantially rectangular board shape with a receiving chamber opened along a front-to-rear direction in a top thereof and penetrating through a front side of the insulating housing, a pair of side walls forming at two opposite sides of the receiving chamber, a fool-proofing board being movably located in the receiving chamber and a substantial middle of a front thereof being concaved rearward to form an inserting chamber, a pair of receiving fillisters being opened in two face-to-face inner sides of the side walls to connect with the receiving chamber and each extending along the front-to-rear direction in front of the fool-proofing board, a bottom side of the receiving chamber defining a plurality of terminal cavities; 
 a plurality of electrical terminals assembled in the terminal cavities of the insulating housing respectively and elastically stretching upward into the receiving chamber and the inserting chamber; 
 two restraining members of which each has a base strip disposed in a front of the corresponding receiving fillister of the insulating housing, and an elastic arm extending rearward from a rear end of the base strip and inclined inward to stretch into the receiving chamber; and 
 a shielding shell enclosing the insulating housing together with the electrical terminals and the restraining members, 
 wherein the elastic arms of the restraining members are pressed into the corresponding receiving fillisters when the SIM card is inserted in the receiving chamber to electrically contact with the electrical terminals, in the process of inserting the micro SIM card into the card connector, the elastic arms of the restraining members elastically resist against two opposite side edges of the micro SIM card so as to guide a rear of the micro SIM card to be smoothly inserted into the inserting chamber and further realize an electrical connection between the micro SIM card and the electrical terminals. 
 
     
     
       2. The card connector as claimed in  claim 1 , wherein the shielding shell has a top plate covered on the insulating housing, and two side plates extending downward from two opposite side edges of the top plate to abut against two opposite outer sides of the side walls, a front edge of one side of the top plate protrudes downward to form a holding plate resisting against a front end of one side wall. 
     
     
       3. The card connector as claimed in  claim 2 , wherein a front end of the base strip of one restraining member is connected with a side edge of the holding plate with the base strip and the elastic arm being located under the top plate, a front of the other side of the top plate defines an opening facing the corresponding receiving fillister, a top edge of the base strip of the other restraining member is connected with a front of an inner edge of the opening with the elastic arm being located under the top plate. 
     
     
       4. The card connector as claimed in  claim 2 , wherein the two opposite outer sides of the side walls and the front end of the one side wall protrude outward to form a plurality of fastening blocks, a plurality of buckling holes is opened in the side plates and the holding plate for buckling the corresponding fastening blocks therein. 
     
     
       5. The card connector as claimed in  claim 4 , wherein bottom edges of the side plates oppositely bend outward to form a plurality of soldering tails. 
     
     
       6. The card connector as claimed in  claim 1 , wherein each base strip of the restraining members protrudes downward to form a fastening tail, a bottom side of the front of each receiving fillister is concaved downward to form a fastening fillister fixing the fastening tail therein.